TPS3307-18

TPS3307-18, TPS3307-25, TPS3307-33 www.ti.com SLVS199C – DECEMBER 1998 – REVISED DECEMBER 2006 TRIPLE PROCESSOR SUPERVISORS FEATURES Triple Supervisory Circuits for DSP and Processor-Based Systems Power-On Reset Generator With Fixed Delay Time of 200ms, No External Capacitor Needed Temperature-Compensated Voltage Reference Maximum Supply Current of 40µA Supply Voltage Range: 2V to 6V Defined RESET Output From VDD ≥ 1.1V MSOP-8 and SO-8 Packages Temperature Range : – 40°C to +85°C D OR DGN PACKAGE (TOP VIEW) SENSE1 SENSE2 SENSE3 GND 1 2 3 4 8 VDD 7 MR 6 RESET 5 RESET TYPICAL APPLICATIONS Figure 1 lists some of the typical applications for the TPS3307 family, and a schematic diagram for a processor-based system application. This application uses TI part numbers TPS3307-33 and MSP430C325. 2.5V 5V 3.3V 470kΩ 620kΩ VDD SENSE 1 SENSE 2 RESET TPS3307−33 SENSE 3 GND 100nF VDD MSP430C325 RESET GND Applications using DSPs, Microcontrollers or Microprocessors w Industrial Equipment w Programmable Controls w Automotive Systems w Portable/Battery Powered Equipment w Intelligent Instruments w Wireless Communication Systems w Notebook/Desktop Computers Figure 1. Applications Using the TPS3307 Family DESCRIPTION The TPS3307 family is a series of micropower supply voltage supervisors designed for circuit initialization primarily in DSP and processor-based systems, which require more than one supply voltage. The product spectrum of the TPS3307-xx is designed ...